At which stage is glucose broken into smaller molecules? before cellular respiration begins during the first stage of cellular respiration during the second stage of cellular respiration at the end of cellular respiration

What is the independent variable in this investigation? mass volume sample number substance density

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false